Network · AS7643

AS7643 Vietnam Posts and Telecommunications (VNPT)

AS7643 (Vietnam Posts and Telecommunications (VNPT)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS7643

  • OwnerVietnam Posts and Telecommunications (
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses19,200
  • IPv4 ranges44
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 203.162.76.0/22
  • 203.162.100.0/22
  • 123.30.136.0/22
  • 123.30.132.0/22
  • 103.119.84.0/22
  • 43.239.220.0/23
  • 222.255.234.0/23
  • 222.255.102.0/23
  • 203.162.80.0/23
  • 203.162.68.0/23
  • 203.162.36.0/23
  • 123.30.94.0/23

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS7643 traffic at signup.

Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.

curl https://veqen-app.com/v1/ip/check \
  -H "Authorization: Bearer $VEQEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.7"}'
import os, requests

r = requests.post(
    "https://veqen-app.com/v1/ip/check",
    headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
    json={"ip": "203.0.113.7"},
    timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])
const res = await fetch("https://veqen-app.com/v1/ip/check", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);
Questions

About AS7643

Is AS7643 a datacenter or VPN network?

AS7643 (Vietnam Posts and Telecommunications (VNPT)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS7643?

AS7643 is registered to Vietnam Posts and Telecommunications (VNPT). It announces about 19,200 IPv4 addresses.

How do I detect traffic from AS7643?

Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.